In its mobile configuration, the RS690T supports side port and MXM technologies for video upgrades. Notebook manufacturers are able to implement an external frame buffer for the integrated Radeon X700-derived graphics core using the available side port. Manufacturers are free to use 512-mbit DDR2 memory for the external frame buffer.

While the RS690T has an integrated Radeon X700-derived graphics core, it features eight PCIe lanes for an external graphics or greater video output capabilities. The eight PCIe lanes are routable to an MXM-slot for graphics card upgrades. Additionally, the eight PCIe lanes are SDVO compatible in case manufacturers want to implement TV, VGA and DVI outputs. Two PCIe x1 links are available for PCIe Ethernet and ExpressCard on RS690T too.

Connecting to the RS690T IGP-north-bridge via a PCIe x4 interconnect is the new SB700 south-bridge. New features of the SB700 include more USB and SATA 3.0Gbps ports. SB700 increases the amount of supported USB 2.0 ports to 12 from the previous 10. Additionally, two USB 1.1 ports are supported for 14-supported USB ports.

AMD increased the total amount of SATA 3.0Gbps ports to six with the SB700; the SB600 south-bridge only supports four SATA 3.0Gbps ports. While chipset manufacturers occasionally remove parallel ATA support completely with more SATA ports, AMD has opted to retain parallel ATA support. The Trevally reference platform uses the ATA 66/100/133 interface for a flash memory module, similar to Intel’s Robson technology.

It is unknown when AMD’s Trevally platform will make its appearance, especially since RS690 is still unavailable.

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